fix

Helius

2022-07-16 4de72879e8647d27da1b49b71404be2cacf8ce2c

 src/main/java/cc/mrbird/febs/dapp/chain/ContractChainService.java

@@ -24,4 +24,6 @@
    BigInteger blockNumber();

    BigInteger totalSupply();

    String safeMintNFT(String toAddress);
}